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Homework regarding pressure XD

  • Thread starter laura297
  • Start date
  • #1
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1. An underwater diver swims from the water surface P down to the seabed Q. He is cleaning the sea from unwanted object such as a box.

a) What is the pressure at the water surface P??

b) The box is 10m below the surface P and the density of the sea water is 1150kg/m(cubed). What is the pressure of the sea water on the top surface of the box?




2. Well the only equation i know is Pressure = Force/Area



The Attempt at a Solution


Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
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Welcome to PF!

Hi Laura! Welcome to PF! :smile:
The box is 10m below the surface P and the density of the sea water is 1150kg/m(cubed). What is the pressure of the sea water on the top surface of the box?

Well the only equation i know is Pressure = Force/Area
Draw the box, with a column of water on top of it, stretching all the way to the surface …

what is the weight of the column of water …

so what is the force on the box …

then use Pressure = Force/Area :wink:
 
  • #3
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0


Hi Laura! Welcome to PF! :smile:


Draw the box, with a column of water on top of it, stretching all the way to the surface …

what is the weight of the column of water …

so what is the force on the box …

then use Pressure = Force/Area :wink:

Thanks alot =]:biggrin:
 

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